http://www.nhlbi.nih.gov/health/public/sleep/ healthy_sleep.pdf
Information about Sleep Disorders
http://www.nlm.nih.gov/medlineplus/sleepdisorders.html
NHLBI Diseases and Conditions Index – DCI
This section includes articles about sleep disorders, tests, procedures, as well as videos, podcasts and Spanish-language articles.
http://www.nhlbi.nih.gov/health/dci/index.html
Refer to Pain and Sleep References
Patients with acute low back pain are more likely to have poor sleep quality than those with good sleep quality.
http://www.ncbi.nlm.nih.gov/pubmed/24782195
Patients suffering from neck pain are less likely to improve if they have poor sleep quality.
http://www.ncbi.nlm.nih.gov/pubmed/25171635
Individuals with mechanical neck pain experience myofascial trigger points that can cause pain, disability, or poor sleep quality.
http://www.ncbi.nlm.nih.gov/pubmed/23158466